When you are happy and having a good time - time passes very fast.
When you are bored or having a bad time - time passes slowly.

Why is this?

If you breathe faster - time passes faster. The faster you breathe - the
faster time passes. If you are having a good time you breathe faster.
If you slow your breathing down - be bored or deep mediation - time passes
slower.
And if you slow yourself down completely to a very deep state and to a state
where you stop breathing - then indeed - time stops.
This we have proved.

You may breathe both externally and internally.
In other words you may take air from outside your body - or you may find a
source of air from within where you connect to a Universal Air Source known
as "Qaui".
This "Qaui" is for deep meditation and is the reason the Aborigine - who
decides to die and thus ceases breathing - does not locate this "Qaui" and
thus when he ceases to breathe he dies.